#!/bin/bash -eu
# Copyright 2019 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
################################################################################

echo "Precompiling honggfuzz"
export BUILD_OSSFUZZ_STATIC=true

PACKAGES=(
    libunwind8-dev
    libblocksruntime-dev
    liblzma-dev
    libiberty-dev
    zlib1g-dev
    pkg-config)

apt-get install -y ${PACKAGES[@]}

pushd $SRC/honggfuzz > /dev/null
make clean
# These CFLAGs match honggfuzz's default, with the exception of -mtune to
# improve portability and `-D_HF_LINUX_NO_BFD` to remove assembly instructions
# from the filenames.
CC=clang CFLAGS="-O3 -funroll-loops -D_HF_LINUX_NO_BFD" make

# libhfuzz.a will be added by CC/CXX linker directly during linking,
# but it's defined here to satisfy the build infrastructure
ar rcs honggfuzz.a libhfuzz/*.o libhfcommon/*.o
popd > /dev/null

apt-get remove -y --purge ${PACKAGES[@]}
apt-get autoremove -y
echo "Done."
